Fix doc generation

In order to make the doc generation for #476 working I had to fix some
errors in existing files. These cover

 - lines which are too long
 - incorrect indentation
 - invalid markup
 - missing javadoc

h2/src/docsrc/html/advanced.html

@@ -1699,7 +1699,7 @@ It is possible to extend the type system of the database by providing your own i
 of minimal required API basically consisting of type identification and conversion routines.
 </p>
 <p>
-In order to enable this feature, set the system property <code>h2.customDataTypesHandler</code> (default: null) to the fully qualified name of the class providing <a href="../javadoc/org/h2/api/CustomDataTypesHandler.html">CustomDataTypesHandler</a> interface implementation. <br>
+In order to enable this feature, set the system property <code>h2.customDataTypesHandler</code> (default: null) to the fully qualified name of the class providing <a href="../javadoc/org/h2/api/CustomDataTypesHandler.html">CustomDataTypesHandler</a> interface implementation. <br />
 The instance of that class will be created by H2 and used to:
 <ul>
 <li>resolve the names and identifiers of extrinsic data types.

h2/src/main/org/h2/api/CustomDataTypesHandler.java

@@ -84,8 +84,8 @@ public interface CustomDataTypesHandler {
      * Converts {@link org.h2.value.Value} object
      * to the specified class.
      *
-     * @param value
-     * @param cls
+     * @param value the value to convert
+     * @param cls the target class
      * @return result
      */
     Object getObject(Value value, Class<?> cls);

h2/src/main/org/h2/mvstore/db/ValueDataType.java

@@ -608,9 +608,11 @@ public class ValueDataType implements DataType {
                 int len = readVarInt(buff);
                 byte[] b = DataUtils.newBytes(len);
                 buff.get(b, 0, len);
-                return JdbcUtils.customDataTypesHandler.convert(ValueBytes.getNoCopy(b), customType);
+                return JdbcUtils.customDataTypesHandler.convert(
+                        ValueBytes.getNoCopy(b), customType);
             }
-            throw DbException.get(ErrorCode.UNKNOWN_DATA_TYPE_1, "No CustomDataTypesHandler has been set up");
+            throw DbException.get(ErrorCode.UNKNOWN_DATA_TYPE_1,
+                    "No CustomDataTypesHandler has been set up");
         }
         default:
             if (type >= INT_0_15 && type < INT_0_15 + 16) {

h2/src/main/org/h2/util/JdbcUtils.java

@@ -127,7 +127,8 @@ public class JdbcUtils {
         String customTypeHandlerClass = SysProperties.CUSTOM_DATA_TYPES_HANDLER;
         if (customTypeHandlerClass != null) {
             try {
-                customDataTypesHandler = (CustomDataTypesHandler) loadUserClass(customTypeHandlerClass).newInstance();
+                customDataTypesHandler = (CustomDataTypesHandler)
+                        loadUserClass(customTypeHandlerClass).newInstance();
             } catch (Exception e) {
                 throw DbException.convert(e);
             }

h2/src/main/org/h2/value/DataType.java

@@ -1109,7 +1109,8 @@ public class DataType {
             return LocalDateTimeUtils.offsetDateTimeToValue(x);
         } else {
             if (JdbcUtils.customDataTypesHandler != null) {
-                return JdbcUtils.customDataTypesHandler.getValue(type, x, session.getDataHandler());
+                return JdbcUtils.customDataTypesHandler.getValue(type, x,
+                        session.getDataHandler());
             }
             return ValueJavaObject.getNoCopy(x, null, session.getDataHandler());
         }

h2/src/main/org/h2/value/Transfer.java

@@ -711,7 +711,8 @@ public class Transfer {
             return ValueGeometry.get(readString());
         default:
             if (JdbcUtils.customDataTypesHandler != null) {
-                return JdbcUtils.customDataTypesHandler.convert(ValueBytes.getNoCopy(readBytes()), type);
+                return JdbcUtils.customDataTypesHandler.convert(
+                        ValueBytes.getNoCopy(readBytes()), type);
             }
             throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, "type=" + type);
         }

h2/src/test/org/h2/test/jdbc/TestCustomDataTypesHandler.java

@@ -84,7 +84,8 @@ public class TestCustomDataTypesHandler extends TestBase {
             assertEquals(ComplexNumber.class.getName(), rs.getMetaData().getColumnClassName(1));
 
             //Test insert
-            PreparedStatement stmt = conn.prepareStatement("insert into t(id, val) values (0, '1.0+1.0i'), (1, ?), (2, ?), (3, ?)");
+            PreparedStatement stmt = conn.prepareStatement(
+                    "insert into t(id, val) values (0, '1.0+1.0i'), (1, ?), (2, ?), (3, ?)");
             stmt.setObject(1, new ComplexNumber(1, -1));
             stmt.setObject(2, "5.0+2.0i");
             stmt.setObject(3, 100.1);
@@ -98,7 +99,8 @@ public class TestCustomDataTypesHandler extends TestBase {
             expected[3] = new ComplexNumber(100.1, 0);
 
             for (int id = 0; id < expected.length; ++id) {
-                PreparedStatement prepStat = conn.prepareStatement("select val from t where id = ?");
+                PreparedStatement prepStat =conn.prepareStatement(
+                        "select val from t where id = ?");
                 prepStat.setInt(1, id);
                 rs = prepStat.executeQuery();
                 assertTrue(rs.next());
@@ -106,7 +108,8 @@ public class TestCustomDataTypesHandler extends TestBase {
             }
 
             for (int id = 0; id < expected.length; ++id) {
-                PreparedStatement prepStat = conn.prepareStatement("select id from t where val = ?");
+                PreparedStatement prepStat = conn.prepareStatement(
+                        "select id from t where val = ?");
                 prepStat.setObject(1, expected[id]);
                 rs = prepStat.executeQuery();
                 assertTrue(rs.next());
@@ -117,7 +120,8 @@ public class TestCustomDataTypesHandler extends TestBase {
             stat.execute("create index val_idx on t(val)");
 
             for (int id = 0; id < expected.length; ++id) {
-                PreparedStatement prepStat = conn.prepareStatement("select id from t where val = ?");
+                PreparedStatement prepStat = conn.prepareStatement(
+                        "select id from t where val = ?");
                 prepStat.setObject(1, expected[id]);
                 rs = prepStat.executeQuery();
                 assertTrue(rs.next());
@@ -130,7 +134,8 @@ public class TestCustomDataTypesHandler extends TestBase {
             assertTrue(rs.getObject(1).equals(new ComplexNumber(107.1, 2)));
 
             // user function
-            stat.execute("create alias complex_mod for \""+ getClass().getName() + ".complexMod\"");
+            stat.execute("create alias complex_mod for \""
+                + getClass().getName() + ".complexMod\"");
             rs = stat.executeQuery("select complex_mod(val) from t where id=2");
             rs.next();
             assertEquals(complexMod(expected[2]), rs.getDouble(1));
@@ -221,15 +226,18 @@ public class TestCustomDataTypesHandler extends TestBase {
                 switch (source.getType()) {
                     case Value.JAVA_OBJECT: {
                         assert source instanceof ValueJavaObject;
-                        return ValueComplex.get((ComplexNumber)JdbcUtils.deserialize(source.getBytesNoCopy(), null));
+                        return ValueComplex.get((ComplexNumber)
+                                JdbcUtils.deserialize(source.getBytesNoCopy(), null));
                     }
                     case Value.STRING: {
                         assert source instanceof  ValueString;
-                        return ValueComplex.get(ComplexNumber.parseComplexNumber(source.getString()));
+                        return ValueComplex.get(
+                                ComplexNumber.parseComplexNumber(source.getString()));
                     }
                     case Value.BYTES: {
                         assert source instanceof  ValueBytes;
-                        return ValueComplex.get((ComplexNumber)JdbcUtils.deserialize(source.getBytesNoCopy(), null));
+                        return ValueComplex.get((ComplexNumber)
+                                JdbcUtils.deserialize(source.getBytesNoCopy(), null));
                     }
                     case Value.DOUBLE: {
                         assert source instanceof ValueDouble;